YARW · Yarrow Bioscience, Inc. · Shareholders & Ownership

$20.00 +0.43 (+2.20%) At close · Oct 29 Q3 2021 earnings call transcript

Market Cap

$52.15M

2.67M

Volume · Oct 29 228.61K Avg daily vol (3M) 108.87K

Every disclosed holder of YARW in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

How the holder list picks a filing →

Who Owns YARW

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

No chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.

Holder group	Holders	Shares	% Out	Summed
Institutional (13F)	45	321,170	12.03%	Yes
Insiders (Forms 3, 4, 5)	9	1,078,535	40.40%	Yes
13D/G-only blocks	7	2,847,992	106.68%	Yes
Remaining	—	1,577,951	-59.10%	Negative
Registered funds (N-PORT, not summed)	6	160,907	6.03%	No

Shares outstanding: 2,669,746, the issuer's latest cover-page count restated onto today's split basis.

Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of YARW

One row per holder Every filing By ultimate parent

All 13F Funds Insiders 13D/G Non-US

#	Holder	Shares	% Out	Change	As of	Notes
1	Bellevue Group AG 13G CIK 1674546 · Non-US institution · Sep 10, 2026 Rule 13d-1(b), qualified institution	1,000,000	37.46%	—	Sep 10, 2026	Rule 13d-1(b), qualified institution
2	Invus Public Equities, L.P. 13G CIK 2005369 · Unknown · Sep 11, 2026 Rule 13d-1(c), passive investor	675,000	25.28%	—	Sep 11, 2026	Rule 13d-1(c), passive investor
3	Logos Global Management LP 13G CIK 1792126 · Registered investment adviser · Jul 31, 2026 Rule 13d-1(b), qualified institution	286,308	10.72%	+9,604	Jul 31, 2026	Rule 13d-1(b), qualified institution
4	venBio Global Strategic Fund V, L.P. 13G CIK 2029777 · Unknown · Jul 27, 2026 Rule 13d-1(c), passive investor	279,340	10.46%	—	Jul 27, 2026	Rule 13d-1(c), passive investor
5	PERCEPTIVE ADVISORS LLC 13G CIK 1224962 · Registered investment adviser · Jul 27, 2026 Rule 13d-1(c), passive investor, not summed	266,756	9.99%	—	Jul 27, 2026	Rule 13d-1(c), passive investor, not summed
5.1	PERCEPTIVE ADVISORS LLC Insider CIK 1224962 · Jul 27, 2026 10% Owner, issuer-wide	266,309	9.98%	+260,826	Jul 27, 2026	10% Owner, issuer-wide
6	JANUS HENDERSON GROUP PLC 13G CIK 1274173 · Investment adviser · Jul 31, 2026 Rule 13d-1(b), qualified institution	266,712	9.99%	—	Jul 31, 2026	Rule 13d-1(b), qualified institution
7	RTW Fund Group GP, LLC Insider CIK 2147397 · Jul 29, 2026 10% Owner, issuer-wide	266,307	9.98%	-133,290	Jul 29, 2026	10% Owner, issuer-wide
7.1	RTW Fund Group GP, LLC 13G CIK 2147397 · Unknown · Jul 27, 2026 Rule 13d-1(b), qualified institution, not summed	266,307	9.98%	—	Jul 27, 2026	Rule 13d-1(b), qualified institution, not summed
8	Ashiya Mona Insider CIK 1794070 · Jul 27, 2026 Director, issuer-wide	266,306	9.98%	—	Jul 27, 2026	Director, issuer-wide
9	ORBIMED ADVISORS LLC 13D CIK 1055951 · Registered investment adviser · Jul 27, 2026 Item 4 purpose: Passive investment not summed	266,306	9.98%	—	Jul 27, 2026	not summed
9.1	ORBIMED ADVISORS LLC Insider CIK 1055951 · Jul 27, 2026 10% Owner, issuer-wide	266,306	9.98%	—	Jul 27, 2026	10% Owner, issuer-wide
10	AI Biotechnology LLC 13D CIK 1942670 · Unknown · Jul 27, 2026 Item 4 purpose: Merger opposition or support, Other	178,180	6.67%	—	Jul 27, 2026
11	Zhang Xiaofan 13G CIK 2140685 · Unknown · Aug 13, 2026 Rule 13d-1(c), passive investor	162,452	6.08%	+162,452	Aug 13, 2026	Rule 13d-1(c), passive investor
12	Columbia Small Cap Growth Fund Fund S000012073 · Registered fund · Aug 31, 2026 COLUMBIA FUNDS SERIES TRUST I, not summed	151,667	5.68%	—	Aug 31, 2026	COLUMBIA FUNDS SERIES TRUST I, not summed
13	ADAR1 Capital Management, LLC 13F CIK 1940272 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	59,000	2.21%	+37,722	Jun 30, 2026	carried, not yet filed for the newest quarter
13.1	ADAR1 Capital Management, LLC 13G CIK 1940272 · Registered investment adviser · Jun 30, 2026 Rule 13d-1(b), qualified institution, not summed	1,180	0.04%	—	Jun 30, 2026	Rule 13d-1(b), qualified institution, not summed
14	STALEY CAPITAL ADVISERS INC 13F CIK 1106565 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	51,472	1.93%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
15	Nantahala Capital Management, LLC 13F CIK 1472322 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	40,000	1.50%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
16	Lynx1 Capital Management LP 13F CIK 1910456 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	32,574	1.22%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
17	Shay Capital LLC 13F CIK 1723643 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	29,133	1.09%	-3,072	Jun 30, 2026	carried, not yet filed for the newest quarter
18	Deeter Investments LLP 13F CIK 1675711 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	20,000	0.75%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
19	BRAIDWELL LP 13F CIK 1920938 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	18,322	0.69%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
20	KVP Capital Advisors, LP 13F CIK 1858198 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	10,011	0.38%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
21	CITADEL ADVISORS LLC 13F CIK 1423053 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	9,369	0.35%	-920	Jun 30, 2026	carried, not yet filed for the newest quarter
22	TWO SIGMA INVESTMENTS, LP 13F CIK 1179392 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	8,776	0.33%	+248	Jun 30, 2026	carried, not yet filed for the newest quarter
23	ACADIAN ASSET MANAGEMENT LLC 13F CIK 916542 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	7,636	0.29%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
24	Domzalski David Insider CIK 1727794 · Jul 23, 2026 Director, PRESIDENT AND CEO, issuer-wide	6,943	0.26%	-1,588	Jul 23, 2026	Director, PRESIDENT AND CEO, issuer-wide
25	Ikarian Capital, LLC 13F CIK 1778253 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	5,298	0.20%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
26	VANGUARD CAPITAL MANAGEMENT LLC 13F CIK 2100119 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	5,291	0.20%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
27	VANGUARD EXTENDED MARKET INDEX FUND Fund S000002841 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	5,291	0.20%	0	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
28	GEODE CAPITAL MANAGEMENT, LLC 13F CIK 1214717 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	5,164	0.19%	-1,290	Jun 30, 2026	carried, not yet filed for the newest quarter
29	VANGUARD FIDUCIARY TRUST CO 13F CIK 933478 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	3,669	0.14%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
30	Fidelity Extended Market Index Fund Fund S000006021 · Registered fund · Aug 31, 2026 Fidelity Concord Street Trust, not summed	2,821	0.11%	-1,266	Aug 31, 2026	Fidelity Concord Street Trust, not summed
31	SUSQUEHANNA INTERNATIONAL GROUP, LLP 13F CIK 1446194 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	2,379	0.09%	+1,223	Jun 30, 2026	carried, not yet filed for the newest quarter
32	Rangeley Capital, LLC 13F CIK 1517796 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	2,261	0.08%	-100	Jun 30, 2026	carried, not yet filed for the newest quarter
33	Stuart Iain Insider CIK 1727756 · Jul 23, 2026 CHIEF SCIENTIFIC OFFICER, issuer-wide	1,919	0.07%	-308	Jul 23, 2026	CHIEF SCIENTIFIC OFFICER, issuer-wide
34	Harsch Mutya Insider CIK 1727809 · Jul 23, 2026 CHIEF LEGAL OFFICER AND GC, issuer-wide	1,918	0.07%	-451	Jul 23, 2026	CHIEF LEGAL OFFICER AND GC, issuer-wide
35	XTX Topco Ltd 13F CIK 1828301 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	1,574	0.06%	-1,594	Jun 30, 2026	carried, not yet filed for the newest quarter
36	Zeronda Tyler Insider CIK 1867033 · Jul 23, 2026 CHIEF FINANCIAL OFFICER, issuer-wide	1,498	0.06%	-451	Jul 23, 2026	CHIEF FINANCIAL OFFICER, issuer-wide
37	GSA CAPITAL PARTNERS LLP 13F CIK 1362033 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,431	0.05%	+1,431	Jun 30, 2026	carried, not yet filed for the newest quarter
38	SUPERSTRING CAPITAL MANAGEMENT LP 13F CIK 1931118 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	1,225	0.05%	+1,225	Jun 30, 2026	carried, not yet filed for the newest quarter
39	UBS Group AG 13F CIK 1610520 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	1,172	0.04%	-2,424	Jun 30, 2026	carried, not yet filed for the newest quarter
40	LEPORE PATRICK G Insider CIK 1055404 · Jan 15, 2025 Director, issuer-wide	1,029	0.04%	+300	Jan 15, 2025	Director, issuer-wide
41	BlackRock, Inc. 13F CIK 2012383 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	888	0.03%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
42	NORTHERN TRUST CORP 13F CIK 73124 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	874	0.03%	+412	Jun 30, 2026	carried, not yet filed for the newest quarter
43	JANE STREET GROUP, LLC 13F CIK 1595888 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	819	0.03%	-1,094	Jun 30, 2026	carried, not yet filed for the newest quarter
44	TWO SIGMA SECURITIES, LLC 13F CIK 1450144 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	814	0.03%	+814	Jun 30, 2026	carried, not yet filed for the newest quarter
45	Fidelity Series Total Market Index Fund Fund S000065248 · Registered fund · Aug 31, 2026 Fidelity Concord Street Trust, not summed	694	0.03%	-1	Aug 31, 2026	Fidelity Concord Street Trust, not summed
46	RENAISSANCE TECHNOLOGIES LLC 13F CIK 1037389 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	466	0.02%	+120	Jun 30, 2026	carried, not yet filed for the newest quarter
47	Fidelity Total Market Index Fund Fund S000006026 · Registered fund · Aug 31, 2026 Fidelity Concord Street Trust, not summed	427	0.02%	-1	Aug 31, 2026	Fidelity Concord Street Trust, not summed
48	COMMONWEALTH EQUITY SERVICES, LLC 13F CIK 312272 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	366	0.01%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
49	STATE STREET CORP 13F CIK 93751 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	315	0.01%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
50	Anson Funds Management LP 13F CIK 1491072 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	289	0.01%	-24,573	Jun 30, 2026	carried, not yet filed for the newest quarter

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 62 holders

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Key facts CIK 1566044 CUSIP 92941V407 13F (30d) 3 filings 3 filers Visit website Investor relations